Pooling and File Replication

One: Initially, files in a share in the pool are stored once in the pool, without extra copies stored (a '-' in the option)

Many: You can specify how many extra copies you want for files in that share. The total limit in the number of copies is the number of partitions joined in the pool.

Max: Alternatively, you can chose this option "Always Max" so that the number of copies matches your partitions, even if you reduce or increase the number of partitions participating in the pool. You want this option for valuable files.

Check out some diagrams explaining things in detail in the Greyhole home page.

NOTE: Greyhole is not a backup solution. If a file is removed, all copies are removed.